Measuring adherence in Internet-delivered behavioral interventions, such as ICBT, is not trivial. Many studies report number of completed intervention modules, but these kinds of measures are rarely meaningfully associated with intervention results. To provide a short, easily administered tool that adequately captures relevant aspects of patient adherence, we constructed and evaluated the iiPAS.

The iiPAS is free for non-commercial uses. You can download it here in English:

You can download it here in Swedish:

Citing the iiPAS:
Lenhard F, Mitsell K, Jolstedt M, Vigerland S, Wahlund T, Nord M, Bjureberg J, Sahlin H, Andrén P, Aspvall K, Melin K, Mataix-Cols D, Serlachius E, Högström J. The Internet Intervention Patient Adherence Scale for Guided Internet-Delivered Behavioral Interventions: Development and Psychometric Evaluation. J Med Internet Res 2019;21(10):e13602. doi: 10.2196/13602